PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42965Thermostat,flow Control

Spirax Sarco Inc Dba Spirax Sarco · NSN 6685-00-334-3872 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-334-3872 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-334-3872. Primary manufacturer part number: 42965.
Features
  • Thermostat,flow Control — FSC 6685
  • Spring Operated Pressure Relief: NOT PROVIDED
  • Operating Temp Rating: 60.0 FAHRENHEIT MINIMUM AND 80.0 FAHRENHEIT MAXIMUM DEGF
  • Flow Control Device: SOLID EXPANSION
  • Thermostat Type: BELLOWS
  • Largest Outside Diameter: 2.420 INCHES NOMINAL IN
  • Accessory Components and Quantity: 25 FT CAPILLARY TUBING W/BULB,1 FT
  • Usage Design: CONTROL VALVE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermostat,flow Control, cataloged under National Stock Number 6685-00-334-3872, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-334-3872
Primary Part Number42965
Item NameThermostat,flow Control
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Spring Operated Pressure ReliefNOT PROVIDED
Operating Temp Rating60.0 FAHRENHEIT MINIMUM AND 80.0 FAHRENHEIT MAXIMUM DEGF
Flow Control DeviceSOLID EXPANSION
Thermostat TypeBELLOWS
Largest Outside Diameter2.420 INCHES NOMINAL IN
Accessory Components and Quantity25 FT CAPILLARY TUBING W/BULB,1 FT
Usage DesignCONTROL VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2940-00-327-172142965 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
2930-01-178-7081670252 INTERCHANGEABLE
Tank,radiator,overflow
Trw Inc Trw Intl Trade Government Sales Dept
Cross-Reference Index
Part NumberManufacturer
42965 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
2940-00-327-1721INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42965
2930-01-178-7081INTERCHANGEABLE
TANK,RADIATOR,OVERFLOW
670252

Frequently Asked Questions

What is NSN 6685-00-334-3872?

NSN 6685-00-334-3872 is a Thermostat,flow Control, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-334-3872?

NSN 6685-00-334-3872 has 1 cross-referenced part number: 42965 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 6685-00-334-3872?

There are 2 known substitutes for 6685-00-334-3872: 2940-00-327-1721, 2930-01-178-7081. Verify interchangeability with system specifications before substitution.

What are the specifications of 42965?

Key specifications for 42965: Overall Height: 2.062 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED; Operating Temp Rating: 60.0 FAHRENHEIT MINIMUM AND 80.0 FAHRENHEIT MAXIMUM DEGF; Flow Control Device: SOLID EXPANSION. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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